How kamaldoharey/node-crud works
1. This repository is a small Node.js CRUD application, organized as a server-rendered monolith rather than a separated frontend/backend system.
2. The runtime entry point is server.js, which likely boots the HTTP server, wires middleware, and attaches the application routes.
3. Request routing is split into server/routes/router.js, which is the traffic director for CRUD endpoints. It maps incoming requests to controller actions.
4. The controller layer lives in server/controller/controller.js. This is the main application logic boundary: it receives requests, coordinates data access, and decides which view or response to return.
5. Persistence is isolated behind server/model/model.js plus server/database/connection.js. That separation suggests a classic data-access layer where SQL or database operations are centralized behind a connection module.
6. Rendering is handled through EJS templates in views/. The app is server-side rendered, with page templates for list, add, and update flows:
- views/index.ejs for the main listing
- views/add_user.ejs for create form
- views/update_user.ejs for edit form
7. Shared UI fragments are factored into views/include/ (_header, _footer, _form, _show). This indicates reusable template partials that reduce duplication across CRUD pages.
8. A small service layer exists at server/services/render.js. Its role is likely to centralize how pages are rendered and keep controller code from being filled with template-specific details.
9. Static presentation assets are served from assets/css/style.css and assets/js/index.js. These are the client-side styling and interactivity layer, separate from the server-side CRUD logic.
10. The main architectural flow is: browser request → Express router → controller → model/database → controller → render service → EJS view → HTML response. The data path is clearly split from the presentation path.
11. The presence of package.json / package-lock.json confirms an npm-managed Node stack. No additional infrastructure is visible in the tree; the app appears self-contained and locally served, with the database as the main external dependency.
12. The .history/ directory looks like editor or local history artifacts and is not part of the application architecture.
Main entry points: index.ejs Index · render.js Render svc · controller.js Controller · update_user.ejs Update user
Components 15
Runtime
Node process that starts the app and handles requests
- Server · Boots the HTTP server and wires middleware/routes
server.js
Server
Routing, controllers, data access, and rendering
- Router · Directs CRUD requests to controller actions
server/routes/router.js - Controller · Coordinates request handling, data access, and response selection
server/controller/controller.js - Render svc · Centralizes page rendering and view selection
server/services/render.js - Model · Encapsulates CRUD persistence operations
server/model/model.js - DB conn · Shared database connection and query setup
server/database/connection.js
Views
Server-side EJS templates and partials
- Index · Main listing page
views/index.ejs - Add user · Create-user form page
views/add_user.ejs - Update user · Edit-user form page
views/update_user.ejs - Header · Shared page header fragment
views/include/_header.ejs - Footer · Shared page footer fragment
views/include/_footer.ejs - Form · Reusable user form fragment
views/include/_form.ejs - Show · Reusable record display fragment
views/include/_show.ejs
Connections 16
- Server → Router: mounts · Server initializes request routing
- Server → Render svc: loads · Server brings in rendering helpers
- Router → Controller: dispatches to · Routes map CRUD endpoints to controller handlers
- Controller → Model: uses · Controller delegates persistence work to the model
- Model → DB conn: queries via · Model executes database operations through the shared connection
- Controller → Render svc: renders through · Controller asks the render service for HTML pages
- Render svc → Index: renders · Render service selects the listing template
- Render svc → Add user: renders · Render service selects the create form template
- Render svc → Update user: renders · Render service selects the edit form template
- Index → Header: includes · List page shares the common header fragment
- Index → Footer: includes · List page shares the common footer fragment
- Add user → Form: includes · Create page reuses the shared form fragment
- Update user → Form: includes · Edit page reuses the shared form fragment
- Update user → Show: includes · Edit page reuses the shared record display fragment
- Index → Styles: styles with · Pages are styled by the shared stylesheet
- Index → Client JS: scripts · Pages load the browser-side script